Two-position five-way reversing valve for inflating turning-over air bag of air mattress

Abstract

The utility model discloses a two-position five-way reversing valve for inflating a turning-over air bag of an air mattress. Comprising a reversing valve motor, a valve seat and a valve cover, a sealing piece is arranged between the valve cover and the valve seat, and the valve seat is provided with an air inlet pipe joint, an air leakage pipe joint, a pressure detection pipe joint, a left air supply pipe joint and a right air supply pipe joint; an air inlet channel, an air leakage channel, a left communication channel and a right communication channel are arranged in the valve seat. The bottom, connected with the valve seat, of the valve deck is provided with an air inlet groove communicating with the air inlet channel and the left air inlet hole at the same time and an air outlet groove communicating with the air leakage hole and the right air inlet hole at the same time. According to the two-position five-way reversing valve, the valve seat and the valve cover are arranged, the left air inlet hole, the right air inlet hole and the air release hole in the valve seat are matched with the air inlet groove and the air outlet groove in the valve cover to achieve two-to-two corresponding communication, and the left-in right-out and right-in left-out reversing air inlet and air release functions of the two-position five-way reversing valve are achieved; the turning-over air bag is simple in structure, convenient to operate and low in cost.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the device of preventing bed sore or helping patient to turn over, such as the technical field of special mattress for this purpose, specifically relates to a two-position five-way reversing valve for the inflation of the turning-over air bag of air mattress. BACKGROUND

[0002] For the patient who can not turn over for long time, bed sore is the biggest problem. Bed sore usually occurs in the patient who is in bed for long time due to illness or injury. The patient who is in bed for long time can not adjust the body position autonomously due to weakness or disability or loss of consciousness, and is in the same position for long time, so the part of the body in contact with the bed is prone to redness, erosion and ulcer, which causes the patient to suffer more pain than the original pain, and even endangers the life, and the nursing staff also has to work harder.

[0003] The following factors mainly affect the occurrence of bed sore:

[0004] Firstly, the part of the body is pressed for long time, and the blood circulation of the pressed part causes damage to the skin and intramuscular tissue to a certain extent;

[0005] In addition, the air in the quilt does not circulate, and the concentration of moisture and turbidity is high, especially for the patient with incontinence, and the environment in the quilt is prone to bacteria, and bed sore is more likely to occur. In order to prevent the patient in bed for long time from causing bed sore due to fixed sleeping posture, the patient in bed must be turned over frequently, and the quilt in contact with the human body must be kept dry and clean, and the workload of nursing is large, so the corresponding medical equipment is needed. At present, the products of inflatable bed sore prevention mattress on the market mainly include:

[0006] (1) strip undulating type bed sore prevention inflatable mattress, the mattress is composed of strip inflatable bag, the bag is divided into odd and even air ducts, and the two groups of air ducts are circulated to inflate and deflate, and the air duct is inflated to undulate.

[0007] (2) spherical inflatable bed sore prevention air mattress, the air mattress is composed of regularly arranged spherical air bags, and the spherical air bags can be grouped to creep and transfer the position of supporting the body.

[0008] The convex and concave undulating inflatable bed sore prevention air mattress not only has poor local deformation ability, cannot realize flexible adjustment of local stress, makes the stress of each part of the human body uneven, but also cannot improve the air and moisture circulation state between the human body and the mattress, and cannot turn over the patient in bed left and right to change the pressed part of the patient, so it is difficult to completely eliminate the possibility of bed sore.

[0009] Through retrieval, it is found that the Chinese patent with the authorization publication number CN102160837B discloses an alternating type air inflation anti-bedsore mattress, the mattress structure is complex, the cost is high, the air and moisture circulation state between the human body and the mattress cannot be improved, and the bed patient cannot perform left and right turning over action;

[0010] The Chinese patent with the publication number CN101803983B discloses an intelligent type turning over anti-bedsore air cushion, the mattress can realize various turning over actions of the bed patient, but the air cushion makes the force of each part of the human body uneven, and the air and moisture circulation state between the human body and the mattress cannot be improved. SUMMARY

[0011] Therefore, in order to overcome the above-mentioned defects of the prior art, the utility model discloses a two-position five-way reversing valve for air mattress turning over air bag inflation, the two-position five-way reversing valve for air mattress turning over air bag inflation is provided with a valve seat and a valve cover, a miniature motor is used to drive the valve cover to rotate relative to the valve seat, left air inlet holes, right air inlet holes and a gas exhaust hole on the valve seat are used to cooperate with air inlet grooves and air outlet grooves on the valve cover to realize two-by-two corresponding communication, the left-in right-out and right-in left-out reversing air inlet and gas exhaust functions of the two-position five-way reversing valve are realized, the turning over air bag one side inflation and the other side gas return effect are realized, the structure is simple, the operation is convenient, and the cost is low.

[0012] In order to achieve the above-mentioned purpose, the utility model discloses a two-position five-way reversing valve for air mattress turning over air bag inflation, including the reversing valve motor of installation in the controller, the valve seat of sleeveing on the motor rotating shaft and with the motor rotating shaft is connected and rotates on the valve cover of valve cover, be provided with sealing element between the valve cover and the valve seat, be provided with with the air pump and the air inlet pipe communication's air inlet pipe joint, with the gas exhaust pipe communication's gas exhaust pipe joint, with the pressure sensor communication's pressure detection pipe joint, with left air bag communication's left gas supply pipe joint and with right air bag communication's right gas supply pipe joint on the valve seat.

[0013] The valve seat is provided with an air inlet channel, a gas exhaust channel, a left communication channel and a right communication channel which are communicated with the air inlet pipe joint, the pressure detection pipe joint, the left gas supply pipe joint and the right gas supply pipe joint respectively;

[0014] The top of the valve seat and the valve cover is provided with a left air inlet hole, a right air inlet hole and a gas exhaust hole which are communicated with the left communication channel, the right communication channel and the gas exhaust channel respectively;

[0015] The bottom of the valve cover and the valve seat is provided with an air inlet groove and an air outlet groove which are communicated with the air inlet channel and the left air inlet hole and the gas exhaust hole and the right air inlet hole respectively.

[0016] Further, the left air inlet hole and the right air inlet hole are symmetrically arranged.

[0017] Further, a through hole is arranged in the valve cover and the valve seat for the motor rotating shaft to pass through, the air inlet channel ring is arranged around the motor rotating shaft, and the sealing element comprises a sealing gasket arranged between the air inlet channel and the motor rotating shaft.

[0018] Further, the air inlet pipe joint is arranged in the middle of one end of the valve seat, and the air outlet pipe joint and the pressure detection pipe joint are arranged on both sides of the air inlet pipe joint.

[0019] Further, the left air supply pipe joint and the right air supply pipe joint are arranged on the other end of the valve seat and are symmetrically arranged along the center line of the air inlet pipe joint.

[0020] Further, the left air charging detection sensor and the right air charging detection sensor are arranged in the controller and located on both sides of the valve seat, and the position contact contact points for contacting and controlling the left air charging detection sensor and the right air charging detection sensor are arranged on the valve cover.

[0021] Further, the driving rod is arranged on the top of the motor rotating shaft and is arranged vertically with the motor shaft, and the driving rod mounting groove for accommodating the driving rod is arranged on the top of the valve cover.

[0022] Further, the valve seat is provided with a pair of symmetrically arranged mounting plates, and the bolt holes for fixing the mounting plates in the controller are arranged on the mounting plates.

[0023] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0024] The utility model discloses a two-position five-way reversing valve for air bed mattress turning-over air bag inflation, which is provided with a valve cover and a valve seat, and the valve cover is driven to rotate relative to the valve seat by a micro motor, left air inlet holes, right air inlet holes and an air outlet hole on the valve seat are matched with air inlet grooves and air outlet grooves on the valve cover to realize two-by-two corresponding communication, and the two-position five-way reversing valve realizes left-in right-out and right-in left-out reversing air inlet and air outlet functions, thereby realizing the effect of inflating one side of the turning-over air bag and returning air on the other side, and the utility model has the advantages of simple structure, convenient operation and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to make the purpose, technical scheme and beneficial effects of the utility model clearer, the utility model provides the following drawings for description:

[0026] Figure 1 It is a use state diagram of the utility model two-position five-way reversing valve for air bed mattress turning-over air bag inflation.

[0027] Figure 2 It is a structure schematic view of the utility model two-position five-way reversing valve for air bed mattress turning-over air bag inflation.

[0028] Figure 3The utility model discloses a structure schematic view of valve cover in two position five way reversing valve for air bed cushion turning over air bag inflation,

[0029] Figure 4 The utility model discloses a structure schematic view of valve seat in two position five way reversing valve for air bed cushion turning over air bag inflation,

[0030] Figure 5 The utility model discloses a top view of valve cover in two position five way reversing valve for air bed cushion turning over air bag inflation,

[0031] Figure 6 The utility model discloses a top view of valve seat in two position five way reversing valve for air bed cushion turning over air bag inflation,

[0032] Figure 7 The utility model discloses a sectional view of valve seat A-A in two position five way reversing valve for air bed cushion turning over air bag inflation

[0033] Fig. 1 - air cushion bed;2 - controller;3 - left turning over air bag;4 - right turning over air bag;5 - air pump;6 - two position five way reversing valve;7 - left air supply gas path;8 - right air supply gas path;9 - left air inlet air pipe;10 - right air inlet air pipe;11 - manual reversing valve;12 - reversing valve motor;13 - motor rotation shaft;14 - valve cover;15 - valve seat;16 - drive rod;17 - bolt hole;18 - left communication passage;19 - right communication passage;20 - left air inlet hole;21 - right air inlet hole;22 - air inlet groove;23 - air outlet groove;24 - position contact contact;25 - mounting plate;26 - air release hole;27 - air inlet pipe joint;28 - air release pipe joint;29 - pressure detection pipe joint;30 - left air supply pipe joint;31 - right air supply pipe joint;32 - drive rod mounting groove;33 - air inlet passage. DETAILED DESCRIPTION

[0034] The preferred embodiments of the utility model will be described below in detail with reference to the drawings.

[0035] As Figures 1-7 The utility model discloses a structure schematic view of two position five way reversing valve for air bed cushion turning over air bag inflation, and the utility model discloses a two position five way reversing valve for air bed cushion turning over air bag inflation, including the reversing valve motor 12 of installing in the controller, the valve seat 15 of casing on motor rotation shaft 13 and with motor rotation shaft 13 is connected and rotates on valve cover 14 on valve seat 15, is provided with sealing element between valve cover 14 and valve seat 15, is provided with air inlet pipe joint 27, air release pipe joint 28, pressure detection pipe joint 29, left air supply pipe joint 30 and right air supply pipe joint 31 with left air bag communication and right air bag communication on valve seat 15 with air pump 5 and air inlet pipe communication.

[0036] The valve seat 15 is provided with an air inlet channel 33 communicated with the air inlet pipe joint 27 and the pressure detection pipe joint 29, an air outlet channel communicated with the air outlet pipe joint, a left communication channel 18 communicated with the left air supply pipe joint 30, and a right communication channel 19 communicated with the right air supply pipe joint 31;

[0037] The top of the valve seat 15 connected with the valve cover 14 is provided with a left air inlet hole 20, a right air inlet hole 21 and an air outlet hole 26 communicated with the left communication channel 18, the right communication channel 19 and the air outlet channel respectively;

[0038] The bottom of the valve cover 14 connected with the valve seat 15 is provided with an air inlet groove 22 communicated with the air inlet channel 33 and the left air inlet hole 20, and an air outlet groove 23 communicated with the air outlet hole 26 and the right air inlet hole 21.

[0039] In the embodiment, the two-position five-way reversing valve 6 is installed on the air supply pipeline in the controller 2, and the reversing action of the two-position five-way reversing valve 6 is controlled by the reversing valve motor 12. When the left turning-over air bag 3 on the air bed 1 needs air supply, the pressure airflow supplied by the air pump 5 enters the left turning-over air bag through the two-position five-way reversing valve 6, the left air supply pipeline 7, the left air inlet pipeline 9, the manual reversing valve 11 and the left turning-over air bag, thereby realizing left turning-over. When the right turning-over air bag 4 on the air bed 1 needs air supply, the pressure airflow supplied by the air pump 5 enters the right turning-over air bag 4 through the two-position five-way reversing valve 6, the right air supply pipeline 8, the right air inlet pipeline 10, the manual reversing valve 11 and the right turning-over air bag 4, thereby realizing right turning-over.

[0040] In the embodiment, the valve seat 15 and the valve cover 14 are provided, the valve cover 14 is driven to rotate relative to the valve seat 15 by the micro motor, the air inlet channel 33, the left air inlet hole 20, the right air inlet hole 21 and the air outlet hole 26 on the valve seat 15 are matched with the air inlet groove 22 and the air outlet groove 23 on the valve cover 14 to realize two-to-two corresponding communication, thereby realizing the reversing air inlet and air outlet functions of the two-position five-way reversing valve, and realizing the effect that one side of the turning-over air bag is inflated and the other side is deflated. The structure is simple, the operation is convenient, and the cost is low.

[0041] In the embodiment, when the left air supply pipeline 7 supplies air in the controller 2, the air inlet channel 33, the left air inlet hole 20 and the air inlet groove 22 are communicated, and the right air inlet hole 21, the air outlet hole 26 and the air outlet groove 23 are communicated. When the right air supply pipeline 8 supplies air in the controller 2, the air inlet channel 33, the right air inlet hole 21 and the air inlet groove 22 are communicated, and the left air inlet hole 20, the air outlet hole 26 and the air outlet groove 23 are communicated.

[0042] In the preferred embodiment, the left air inlet hole 20 and the right air inlet hole 21 are symmetrically arranged. In the embodiment, the structure is convenient to control. In the operation process, the reversing valve motor 12 is used to rotate 180° unidirectionally to realize left and right reversing air inlet.

[0043] In the preferred embodiment, a through hole is arranged between the valve cover 14 and the valve seat 15 through which the motor rotating shaft 13 passes, the air inlet channel 33 is arranged around the motor rotating shaft 13, and the sealing element comprises a sealing gasket arranged between the air inlet channel 33 and the motor rotating shaft 13. In this embodiment, the sealing gasket is used to isolate the air inlet channel 33 from the motor rotating shaft 13 to prevent air leakage at the motor rotating shaft 13. In this embodiment, the valve cover 14 and the valve seat 15 are both made of plastic, and the relative pressure of the valve cover 14 and the valve seat 15 is used to achieve sealing between the air inlet channel 33, the left air inlet hole 20, the right air inlet hole 21, and the air leakage hole 26.

[0044] In this embodiment, the through hole is arranged at the middle position of the valve seat 15, the air inlet channel 33 is arranged at the first circle around the through hole, the left air inlet hole 20 and the right air inlet hole 21 are arranged at the second circle around the air inlet channel 33, and the air leakage hole 26 is arranged at the third circle outside the left air inlet hole 20 or the right air inlet hole 21. The air inlet groove 22 is connected between the first circle and the second circle, and the air outlet groove 23 is connected between the second circle and the third circle.

[0045] In the preferred embodiment, the air inlet pipe joint 27 is arranged at the middle of one end of the valve seat 15, and the air leakage pipe joint 28 and the pressure detection pipe joint 29 are arranged on both sides of the air inlet pipe joint 27. This structure makes the valve seat compact, small in size, reasonably arranged, easy to open the mold, and low in cost.

[0046] In the preferred embodiment, the left air supply pipe joint 30 and the right air supply pipe joint 31 are arranged at the other end of the valve seat 15 and symmetrically arranged along the center line of the air inlet pipe joint 27. This structure makes the valve seat compact, small in size, reasonably arranged, easy to open the mold, and low in cost.

[0047] In the preferred embodiment, left and right air charging detection sensors are arranged on both sides of the valve seat 15 in the controller 2, and position contact contacts 24 for controlling are arranged on the valve cover 14 and in contact with the left and right air charging detection sensors. In this embodiment, the position contact contacts 24 are used to control the rotating position of the motor to achieve the function of reversing air inlet and air leakage.

[0048] In the preferred embodiment, a driving rod 16 is arranged vertically to the motor shaft at the top of the motor rotating shaft 13, and a driving rod mounting groove 32 is arranged on the top of the valve cover to accommodate the driving rod. In this embodiment, the structure facilitates the rotation of the motor rotating shaft 13, drives the driving rod 16 to rotate the valve cover 14, is simple in structure, and is convenient to operate.

[0049] In the preferred embodiment, a pair of symmetrically arranged mounting plates are arranged on the valve seat 15, and bolt holes 17 for fixing the mounting plates in the controller 2 are arranged on the mounting plates 25. In this embodiment, the mounting plates are fixed in the controller by bolts to achieve the purpose of fixing and installing the two-position five-way reversing valve.

[0050] Finally, it is pointed out that the above preferred embodiments are only to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.

Claims

1. A two-position five-way reversing valve for inflating an airbag in an air mattress, characterized by: It includes a reversing valve motor installed in the controller, a valve seat sleeved on the motor rotating shaft, and a valve cover connected to the motor rotating shaft and rotating on the valve seat, a sealing member is provided between the valve cover and the valve seat, and the valve seat is provided with an intake pipe joint connected to the air pump and the intake pipe, an exhaust pipe joint connected to the exhaust pipe, a pressure detection pipe joint connected to the pressure sensor, a left air supply pipe joint connected to the left airbag, and a right air supply pipe joint connected to the right airbag; The valve seat is provided with an air intake channel connected to both the air intake pipe joint and the pressure detection pipe joint, an air discharge channel connected to the air discharge pipe joint, a left communication channel connected to the left air supply pipe joint, and a right communication channel connected to the right air supply pipe joint; The top of the valve seat where the valve cover is connected is provided with a left air inlet hole, a right air inlet hole and an air leak hole which are respectively connected with the left communication channel, the right communication channel and the air leak channel; An air inlet groove connected to the air inlet channel and the left air inlet hole and an air outlet groove connected to the air leakage hole and the right air inlet hole are provided on the bottom of the valve cover connected to the valve seat.

2. The two-position five-way reversing valve for inflating an airbag of an air mattress according to claim 1, characterized in that: The left air inlet and the right air inlet are symmetrically arranged.

3. The two-position five-way reversing valve for inflating an airbag of an air mattress as claimed in claim 2, characterized in that: A through hole for the motor rotating shaft to pass through is provided between the valve cover and the valve seat. The air intake channel is arranged around the motor rotating shaft. The sealing component includes a sealing gasket provided between the air intake channel and the motor rotating shaft.

4. The two-position five-way reversing valve for inflating an airbag of an air mattress as claimed in claim 3, characterized in that: The air inlet pipe joint is arranged in the middle of one end of the valve seat, and the air release pipe joint and the pressure detection pipe joint are arranged on both sides of the air inlet pipe joint.

5. The two-position five-way reversing valve for inflating an airbag of an air mattress as claimed in claim 4, characterized in that: The left air supply pipe joint and the right air supply pipe joint are arranged at the other end of the valve seat and are symmetrically arranged along the center line of the air inlet pipe joint.

6. The two-position five-way reversing valve for inflating an airbag of an air mattress as claimed in claim 5, characterized in that: A left inflation detection sensor and a right inflation detection sensor are arranged on both sides of the valve seat in the controller, and a position contact contact that contacts the left inflation detection sensor and the right inflation detection sensor and is used for control is arranged on the valve cover.

7. The two-position five-way reversing valve for inflating an airbag of an air mattress according to claim 6, characterized in that: A driving rod vertically arranged with respect to the motor shaft is provided on the top of the motor rotating shaft, and a driving rod mounting groove for accommodating the driving rod is provided on the top of the valve cover.

8. The two-position five-way reversing valve for inflating an airbag of an air mattress according to claim 7, characterized in that: A pair of symmetrically arranged mounting plates are provided on the valve seat, and bolt holes for fixing the valve seat in the controller are provided on the mounting plates.

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